X-ray marker



FIG. 1 is a perspective view of an x-ray marker showing my design.

FIG. 2 is a top side view thereof;

FIG. 3 is a front elevation view thereof;

FIG. 4 is a rear elevation view thereof; and,

FIG. 5 is a right side view thereof.

The broken lines in FIGS. 1 and 3 are included for the purpose of illustration a portion of the marker that forms no part of the claimed design. 

CLAIM The ornamental design for an x-ray marker, as shown and described. 